Vena cava duplex imaging before caval interruption

Abstract

Duplex ultrasonography is a useful and accurate method for assessment of the IVC before vena cava filter placement.

Retrieval of Inferior Vena Cava Filters Temporarily Placed in a Suprarenal Position: A Review of 13 Patients

“…11 Similar findings were seen in a study of 73 patients with suprarenal IVCF, which reported 11 (15%) cases of caudal filter migration. 5 Despite concerns regarding increased risk of filter migration in the larger caliber suprarenal IVC, 12,13 filter migration rates appear to be comparably low in Option Elite and Tulip filters placed both above and below the renal veins. Filter migration was only seen in 1 (8%) patient in our study, but this patient had a substantially longer indwelling time than the other patients in our study cohort.…”

Evaluation of Wall Motion and Dynamic Geometry of the Inferior Vena Cava Using Intravascular Ultrasound:Implications for Future Device Design

“…However, this does not account for the significant movement of the short axis, which may actually become the longer axis during expiration and Valsalva. In fact, the AP diameter is rarely accounted for during consideration of filter placement, 14,15 which strongly suggests that measurements for filter selection should be obtained during Valsalva maneuvers to obtain a true maximum diameter and avoid undersizing. The AP diameter and dynamic measurements may need to be considered during filter sizing.…”

Bedside Insertion of Vena Cava Filters in the Intensive Care Unit Using Intravascular Ultrasound to Locate Renal Veins

“…Friedland et al 20 compared duplex ultrasound with contrast cavography for evaluation of IVC filter placement and found an excellent correlation between the two with respect to IVC diameter measurements, with only one ultrasound examination considered inadequate. These authors concluded that duplex ultrasound provided an adequate IVC image for filter placement.…”